C0460
DTC C0460
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.
DTC Descriptors
DTC C0460
- Steering Wheel Angle Sensor
For symptom byte information, refer to Symptom Byte List Symptom Byte List.
Diagnostic Fault Information
Circuit/System Description
The steering angle sensor receives a 12 V reference voltage from the electronic brake control module (EBCM). The EBCM receives high speed controller area network (CAN) message inputs from the steering angle sensor identifying the position and direction of the steering wheel rotation. The EBCM utilizes this signal to calculate the driver intended driving direction.
Conditions for Running the DTC
Ignition ON.
Conditions for Setting the DTC
C0460 00
The control module received an invalid steering wheel angle sensor signal.
C0460 4B
The steering wheel angle sensor is not calibrated or calibration is incorrect.
Action Taken When the DTC Sets
* The EBCM disables the stability control and hill start assist for the duration of the ignition cycle.
* The antilock brake system indicator turns ON.
Conditions for Clearing the DTC
* A current DTC clears when the diagnostic runs and passes.
* The EBCM will turn OFF the indicator in the next ignition cycle.
Diagnostic Aids
The car should not pull in either direction causing the steering wheel to be OFF center while driving in a straight line on a level surface.
Reference Information
Schematic Reference
Power Steering Schematics Electrical Diagrams
Antilock Brake System Schematics [1][2]Antilock Brakes / Traction Control Systems
Data Communication Schematics [1][2]Electrical Diagrams
Connector End View Reference
Component Connector End Views Fuel Pump and Level Sensor Assembly
Description and Operation
Power Steering System Description and Operation Description and Operation
Electrical Information Reference
* Circuit Testing Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs
Scan Tool Reference
Control Module References Control Module References for scan tool information
Circuit/System Verification
1. Ignition ON.
2. Connect a scan tool and verify the Steering Wheel Angle Position parameter travels between -550 to +550°.
• If the parameter is out of range
Refer to Circuit/System Testing.
• If the parameter does not change
Refer to Circuit/System Testing
• If the parameter travels in the designated range
3. All OK.
Circuit/System Testing
1. Ignition ON.
2. Verify with a scan tool, that DTC C0710 is not set as present.
• If the DTC is set
Refer to DTC C0710 C0710
• If the DTC is not set
3. Inspect the B99 Steering Wheel Angle Sensor for correct installation.
• If loose or incorrect installation is diagnosed
Correct the installation of the component and perform the Steering Angle Sensor Centering Procedures.
• If correct installation is diagnosed
4. Ignition OFF and all vehicle systems OFF. It may take up to 2 min for all vehicle systems to power down.
5. Disconnect the harness connector at the B99 Steering Wheel Angle Sensor.
6. Test for less than 5 ohms between the ground circuit terminal 6 and ground.
• If 5 ohms or greater
1. Ignition OFF.
2. Test for less than 2 ohms in the ground circuit end to end.
• If 2 ohms or greater, repair the open/high resistance in the circuit.
• If less than 2 ohms, repair the open/high resistance in the ground connection.
• If less than 5 ohms
7. Ignition ON.
8. Test for 11.5-12.5 V between the 12 V reference circuit terminal 5 and ground.
• If less than 11.5 V
1. Ignition OFF. disconnect the harness connector at the K17 Electronic Brake Control Module and the B119 Multi-axis Acceleration Sensor.
2. Test for infinite resistance between the 12 V reference circuit and ground.
• If less than infinite resistance, repair the short to ground on the circuit.
• If infinite resistance
3. Test for less than 2 ohms in the 12 ohms reference circuit end to end.
• If 2 ohms or greater, repair the open/high resistance in the circuit.
• If less than 2 ohms, replace the K17 Electronic Brake Control Module.
• If greater than 12.5 V
1. Ignition OFF, disconnect the harness connector at the K17 Electronic Brake Control Module.
2. Test for less than 1 V between the 12 V reference circuit and ground.
• If 1 V or greater, repair the short to voltage on the circuit.
• If less than 1 V, replace the K17 Electronic Brake Control Module.
• If within 11.5-12.5 V
9. Replace the B99 Steering Wheel Angle Sensor.
10. Perform the Steering Angle Sensor Centering Procedures.
11. Verify the DTC does not set again.
• If the DTC sets
Replace the K17 Electronic Brake Control Module.
• If the DTC does not set
12. All OK.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the repair.
* Steering Angle Sensor Replacement Removal and Replacement
* Control Module References Control Module References for EBCM replacement, programming and setup.